US Bridges

NM-466 over I-25 Nbls/Sbl

Fair

Santa Fe County, New Mexico · 1.5 MI N ST Francis DR · Structure no. 000000000007509

Built
1974
51 years old, rebuilt 2001
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
330 ft
5 main spans
Daily traffic
4,310
2023 count
Owner
State
State Highway Agency

About this bridge

NM-466 over I-25 Nbls/Sbl is a prestressed concrete stringer/multi-beam or girder carrying NM-466 over I-25 Nbls/Sbl in Santa Fe County, New Mexico. It was built in 1974 and reconstructed in 2001, so it is 51 years old, younger than the New Mexico average of 51.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 4,310 vehicles a day, roughly 12% of them trucks, projected to reach 5,861 by 2043. The structure is 330 ft (100.6 m) long and 78 ft wide.

Location

Open in Google Maps
CarriesNM-466
CrossesI-25 Nbls/Sbl
Location1.5 MI N ST Francis DR
RouteState Highway 466
CountySanta Fe County
StateNew Mexico
Coordinates35.6365, -105.9305
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length330 ft (100.6 m)
Longest span92 ft (28 m)
Deck width78 ft (23.8 m)
Roadway width78 ft (23.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,310 (2023)
Projected traffic5,861 by 2043
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$790,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-466 over I-25 Nbls/Sbl built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2001.

What condition is NM-466 over I-25 Nbls/Sbl in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does NM-466 over I-25 Nbls/Sbl carry?

About 4,310 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is NM-466 over I-25 Nbls/Sbl?

The structure is 330 ft (100.6 m) long with a longest span of 92 ft (28 m) and a deck 78 ft wide.

Who owns NM-466 over I-25 Nbls/Sbl?

It is owned by the State Highway Agency.